510(k) · Cleared
ClearedElectronic Pulse Stimulator
Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly
Shenzhen Jingkehui Electronic Co.., Ltd. · NUH Stimulator, Nerve, Transcutaneous, Over-The-Counter
Cleared on Nov 15, 2013 as substantially equivalent to K122744 (Prospera Corporation, 2013) after a 142-day review. Its family tree reaches back 5 generations to 1994. 6 later devices descend from it.
- Decided
- Nov 15, 2013
- Review
- 142 days
- Class
- Class II
- Product code
- NUH
- Recalls
- None
- Predicates
- 1
Its longest line of descent runs back 5 generations to K940301 (1994). 9 ancestors in all. 6 later devices descend from it, 1 citing it directly.
- Root · 5 generations backK940301 Compex 2Biodex Medical Systems, Inc. · 1994
- 4 generations backK011880 Compex SportCompex S.A. · 2002
- 3 generations backK060846 Therapeutic Massage CompanionEndurance Therapeutics · 2007
- 2 generations backK102598 HI-Dow-XPHi-Dow International, Inc. · 2011
- 1 generation backK122744 Prospera Otc Tens Electronic Pulse MassagerProspera Corporation · 2013
- This deviceK131921 Electronic Pulse StimulatorShenzhen Jingkehui Electronic Co.., Ltd. · 2013
- Descendant · cites it directly · 5 of its ownK141260 Electronic Pulse StimulatorShenzhen Jingkehui Electronic Co.., Ltd. · 2014
- Descendant · 2 generations on · 2 of its ownK200561 StimPlus Patch, StimPlus Patch, StimPlus PatchJkh Health Co., Ltd. · 2020
- Descendant · 3 generations on · 1 of its ownK211942 Heating Lumbar Therapy Cushion (Model: AST-622, AST-622B, AST-623…Shenzhen Osto Technology Company Limited · 2021
- Descendant · 4 generations on · 0 of its ownK223428 Electronic Stimulator (Models: uLumb-9530A, uLumb-9531A…Shenzhen Leqing Medical Instrument Co., Ltd. · 2023
- Descendant · 2 generations on · 0 of its ownK182671 Medi-Direct TENS PenJkh USA, LLC · 2019
Showing 5 of 6 descendants. See all descendants
Descendants cleared per year
Most influential descendants
Showing 5 of 6 · See all- K141260Electronic Pulse StimulatorShenzhen Jingkehui Electronic Co.., Ltd. · 2014 · cites it directly5descendants
- K200561StimPlus Patch, StimPlus Patch, StimPlus PatchJkh Health Co., Ltd. · 2020 · 2 generations on2descendants
- K211942Heating Lumbar Therapy Cushion (Model: AST-622, AST-622B, AST-623, AST-623B)Shenzhen Osto Technology Company Limited · 2021 · 3 generations on1descendant
- K223428Electronic Stimulator (Models: uLumb-9530A, uLumb-9531A, uLumb-9532A, uLumb-9533A…Shenzhen Leqing Medical Instrument Co., Ltd. · 2023 · 4 generations on0descendants
- K182671Medi-Direct TENS PenJkh USA, LLC · 2019 · 2 generations on0descendants
View FIG. 1 as a table
Line of descent and top descendants
| Generation | Number | Device | Applicant | Decided | Recalls |
|---|---|---|---|---|---|
| −5 | K940301 | Compex 2 | Biodex Medical Systems, Inc. | 1994 | — |
| −4 | K011880 | Compex Sport | Compex S.A. | 2002 | — |
| −3 | K060846 | Therapeutic Massage Companion | Endurance Therapeutics | 2007 | — |
| −2 | K102598 | HI-Dow-XP | Hi-Dow International, Inc. | 2011 | — |
| −1 | K122744 | Prospera Otc Tens Electronic Pulse Massager | Prospera Corporation | 2013 | — |
| 0 (this device) | K131921 | Electronic Pulse Stimulator | Shenzhen Jingkehui Electronic Co.., Ltd. | 2013 | — |
| +1 | K141260 | Electronic Pulse Stimulator | Shenzhen Jingkehui Electronic Co.., Ltd. | 2014 | — |
| +2 | K200561 | StimPlus Patch, StimPlus Patch, StimPlus Patch | Jkh Health Co., Ltd. | 2020 | — |
| +3 | K211942 | Heating Lumbar Therapy Cushion (Model: AST-622, AST-622B, AST-623, AST-623B) | Shenzhen Osto Technology Company Limited | 2021 | — |
| +4 | K223428 | Electronic Stimulator (Models: uLumb-9530A, uLumb-9531A, uLumb-9532A… | Shenzhen Leqing Medical Instrument Co., Ltd. | 2023 | — |
| +2 | K182671 | Medi-Direct TENS Pen | Jkh USA, LLC | 2019 | — |
Other ancestors by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 2004 | 2 | 0 |
| 2005 | 1 | 0 |
| 2012 | 1 | 0 |
Descendants by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 2014 | 1 | 0 |
| 2017 | 1 | 0 |
| 2019 | 1 | 0 |
| 2020 | 1 | 0 |
| 2021 | 1 | 0 |
| 2023 | 1 | 0 |
Sources: FDA 510(k) database (decision fields), the FDA summary (predicates and indications), FDA recall and enforcement reports, and MAUDE; processed by 510(k) Report. Verify on FDA.gov · Methodology and accuracy.
Planning a device in NUH? A 510(k) Report weighs predicate choices, recall history and review times for a new device like this one.
Top candidate predicates for a new NUH device
- #1 K190783 Health Expert Electronic Stimulator (model…score 15.8 · 7 generations · no Class I recall
- #2 Held for the reportin the report
- #3 Held for the reportin the report
What was it cleared against? (1)
Devices the submitter claimed this one is substantially equivalent to (*), and reference devices cited for a specific test or feature (†), as written in the FDA summary.
| Type | Number | Device | Decided |
|---|---|---|---|
| * | K122744 | Prospera Otc Tens Electronic Pulse MassagerSummary page 1…ulation Number: 21 CFR 882.5890 Device Class: 11 Use: Over-The-Counter 3. Predicate device Predicate Device: Prospera OTC TENS Electronic Pulse Massager 5 10(k) Number: K122744 Use: Over-The-Counter Submitter: Prospera Corporation 4. Description of Proposed Device The Electronic Pulse Stimulator is a Tra… | 2013 |
What descends from it? (6)
1 later device cites it directly; ranked here by how many devices descend from each in turn.
| Number | Device | Decided | Descendants |
|---|---|---|---|
| K141260 | Electronic Pulse Stimulator | 2014 | 5 |
Has anything in its family been recalled? (0 Class I)
No FDA recall names this device.
No ancestor or descendant has a Class I recall.
What does this lineage say?
- The line of descent spans 19 years and passes through 6 companies; a new generation was cleared every 3.4 years on median.
- None of the 9 ancestors has a recall.
- Of its descendants, K141260 (Shenzhen Jingkehui Electronic Co.., Ltd., 2014) has gone furthest, with 5 descendants of its own.
- 7 other devices also cite its predicate K122744.
How does its category compare?
All NUH devicesNUH Stimulator, Nerve, Transcutaneous, Over-The-Counter: FDA decisions, review times, recalls and adverse event reports over 20 years. 2013, this device’s year, is highlighted.
FDA decisions per year · NUH
15in 2025
2026 to Oct 25, outlined.
Median 510(k) review, days · NUH
119in 2025
Receipt to decision; years with fewer than 3 clearances left blank.
Recalls per year · NUH
No recall names NUH since 2007.
Adverse event reports per year · NUH
7in 2025
MAUDE reports naming product code NUH, not matched to any one device; reports are not rates.
View these four charts as a table
| Year | Decisions | Median 510(k) review, days | Recalls (Class I) | MAUDE reports |
|---|---|---|---|---|
| 2007 | 4 | 161 | 0 | 0 |
| 2008 | 0 | — | 0 | 0 |
| 2009 | 1 | — | 0 | 0 |
| 2010 | 3 | 148 | 0 | 0 |
| 2011 | 6 | 231 | 0 | 0 |
| 2012 | 6 | 170 | 0 | 0 |
| 2013 | 10 | 189 | 0 | 1 |
| 2014 | 16 | 212 | 0 | 9 |
| 2015 | 14 | 198 | 0 | 11 |
| 2016 | 13 | 145 | 0 | 13 |
| 2017 | 17 | 155 | 0 | 21 |
| 2018 | 16 | 121 | 0 | 18 |
| 2019 | 19 | 213 | 0 | 5 |
| 2020 | 14 | 147 | 0 | 8 |
| 2021 | 14 | 198 | 0 | 7 |
| 2022 | 20 | 103 | 0 | 2 |
| 2023 | 15 | 127 | 0 | 4 |
| 2024 | 20 | 90 | 0 | 7 |
| 2025 | 15 | 119 | 0 | 7 |
| 2026 | 5 | 137 | 0 | — |
What is it indicated for?
To be used for temporary relief of pain associated with sore and aching muscles in the shoulder, waist, neck, back, arm, and leg, due to strain from exercise or normal household and work activities.
Indications for use as stated in the FDA summary.
https://510kreport.com/device/K131921 · printed Nov 6, 2026
Cite this page
510(k) Report. “K131921: Electronic Pulse Stimulator.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 6, 2026. https://510kreport.com/device/K131921
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Record history
- FDA decision record loaded May 2, 2026
- Summary read Oct 13, 2026 (extraction version 9eaa42aa01ed)
- Lineage and recalls computed Nov 3, 2026
- Page last updated Nov 3, 2026